R Dataset / Package datasets / treering
On this Picostat.com statistics page, you will find information about the treering data set which pertains to Yearly Treering Data, -6000–1979. The treering data set is found in the datasets R package. Try to load the treering data set in R by issuing the following command at the console data("treering"). This may load the data into a variable called treering. If R says the treering data set is not found, you can try installing the package by issuing this command install.packages("datasets") and then attempt to reload the data with library("datasets") followed by data("treering"). Perhaps strangley, if R gives you no output after entering a command, it means the command succeeded. If it succeeded you can see the data by typing treering at the command-line which should display the entire dataset.
If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the treering R data set. The size of this file is about 90,677 bytes.
Yearly Treering Data, -6000–1979
Contains normalized tree-ring widths in dimensionless units.
A univariate time series with 7981 observations. The object is of
Each tree ring corresponds to one year.
The data were recorded by Donald A. Graybill, 1980, from Gt Basin Bristlecone Pine 2805M, 3726-11810 in Methuselah Walk, California.
Time Series Data Library: http://www-personal.buseco.monash.edu.au/~hyndman/TSDL/, series ‘CA535.DAT’
For some photos of Methuselah Walk see http://www.ltrr.arizona.edu/~hallman/sitephotos/meth.html
Dataset imported from https://www.r-project.org.
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